JP6357400B2 - Socket and card connector - Google Patents

Description

  The present invention relates to a socket for housing a card and a card connector.

  Conventionally, in electronic devices such as personal computers, mobile phones, smartphones, PDAs (Personal Digital Assistants), digital cameras, video cameras, music players, game consoles, vehicle navigation devices, SIM (Subscriber Identity Module) cards, MMC ( R) (Multi Media Card), SD (R) (Secure Digital) card, miniSD (R) card, xD Picture Card (R) (xD-Picture card), Memory Stick (R), Memory Stick Duo (R), In order to use various memory cards such as smart media (R), Trans-Flash (R) memory card, micro SD (R) card, etc. And a (e.g., see Patent Document 1).

  A memory card usually has a plurality of connection pads on the bottom surface, and when inserted into the card connector in a correct posture, the connection pads of the memory card come into contact with the connection terminals in the card connector to conduct. As a result, the substrate on which the card connector is mounted is allowed to access the memory card via the card connector, and data can be read and written.

  In recent years, it has been pointed out that memory cards may not only be sensitive to noise from the surroundings but also adversely affect the surroundings as they increase in data volume and read / write speed. . Therefore, a tray-type card connector that inserts a memory card through the tray covers the memory card with a metal tray having a noise shielding function, and a direct-insertion type card connector that directly inserts a memory card has a noise. The influence of noise is reduced by covering the memory card with a metal shell having a shielding function.

JP 2010-102830 A

  However, in a card connector intended for a memory card (for example, a micro SD (R) card) provided with a thick portion for a take-out operation at the rear edge, in particular, in a direct insertion type card connector having no eject function, Since the trailing edge portion of the card is exposed over a wide range in order to allow the thick portion to be taken out, the noise shielding performance is insufficient.

  Therefore, the present invention has been made in view of the above-described problems, and accommodates a card having a thick portion for taking-out operation at the rear edge, and allows the taking-out operation of the thick portion. However, it is an object of the present invention to provide a socket and a card connector that increase the coverage area of a card by a shell and improve noise shielding performance.

  The present invention has been proposed to achieve the above object, and the invention according to claim 1 is a socket for a card connector, using a housing for housing a card and a material capable of shielding noise. And a shell that covers the card accommodated in the housing, and the shell includes an extension portion that covers a thick portion for removal operation provided at a rear edge of the card, and the extension portion However, it has a notch for taking out and operating the said thick part in the part.

  In the invention according to claim 2, the cut is formed in a central portion of the extended portion.

  According to a third aspect of the present invention, the extension portion covers a side edge of the thick portion, and has a mounting portion on the substrate at the tip.

  Moreover, the invention concerning Claim 4 is a card connector, Comprising: The socket as described in any one of Claims 1-3 is provided.

  According to the present invention, while accommodating a card provided with a thick portion for the take-out operation at the rear edge, while allowing the take-out operation of the thick portion, expanding the cover area of the card by the shell, Noise shielding performance can be improved.

It is a perspective view which shows the card removal state of the card connector which concerns on embodiment of this invention. It is a figure which shows the card | curd which concerns on embodiment of this invention, (a) is a top view of a card | curd, (b) is a bottom view of a card | curd. It is a perspective view which shows the state which removed the shell of the card connector which concerns on embodiment of this invention. It is a figure which shows the card insertion state of the card connector which concerns on embodiment of this invention, (a) is a top view of a card connector, (b) is a side view of a card connector, (c) is a rear view of a card connector. . It is a figure which shows the card insertion / removal procedure of the card connector which concerns on embodiment of this invention, (a) is a perspective view of the card connector which shows the middle of card insertion / middle removal, (b) is a card connector which shows a card insertion state FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the drawings. In the present specification, among the components of the card connector, the component for accommodating the card is defined as a socket for the card connector. In other words, the portion excluding the component for electrically connecting to the card from the component of the card connector is the socket. Hereinafter, unless otherwise specified, sockets will be described using the terminology of card connectors.

FIG. 1 is a perspective view showing a card removal state of a card connector according to an embodiment of the present invention.
A card connector 1 shown in FIG. 1 is a card connector to which a socket according to the present invention is applied. The card connector 1 is mounted on a substrate of an electronic device (not shown), and a card 101 to be described later is inserted therein. As a result, the card 101 is attached to the electronic device via the card connector 1. The electronic device is, for example, a personal computer, a mobile phone, a smartphone, a PDA, a digital camera, a video camera, a music player, a game machine, a vehicle navigation device, or the like, but may be any type of device.

  In the present embodiment, expressions indicating directions such as upper, lower, left, right, front, rear, etc. used for explaining the configuration and operation of each part of the card connector 1 are not absolute but relative. This is appropriate when the card connector 1 or its parts are in the posture shown in the figure. However, when the posture of the card connector 1 or its parts is changed, the card connector 1 or its parts is changed according to the change in posture. Should be interpreted.

2A and 2B are diagrams showing a card according to an embodiment of the present invention, in which FIG. 2A is a plan view of the card and FIG. 2B is a bottom view of the card.
As shown in FIGS. 1 and 2, the card 101 inserted into the card connector 1 is a card having a thick portion 111 for taking out operation at the rear edge. In the present embodiment, a micro SD (R) card will be described as an example. However, any type of card may be used as long as the card is provided with a thick portion for removal operation on the rear edge.

  As shown in FIG. 2, a card 101 made of a micro SD (R) card has a substantially rectangular plate shape, and the above-described thick portion 111 for the take-out operation is formed on the rear edge. Specifically, the thick portion 111 is constituted by a convex portion protruding upward from the rear edge portion of the upper surface of the card 101, and a nail or a finger is formed on the step portion 112 formed on the front edge of the thick portion 111. Alternatively, the card 101 can be easily taken out by hooking a tool such as a pin.

  On the other hand, a plurality of connection pads 151 are arranged on the bottom surface of the card 101. Specifically, a plurality of connection pads 151 are arranged at positions near the front end on the bottom surface of the card 101 so as to be aligned along the front end edge.

  The card 101 has an asymmetric shape on the left and right and front and rear sides in order to prevent erroneous insertion due to the upside down posture and wrong insertion due to the front and back inverted posture. Specifically, it has a notch 121 at the right edge on the front end side, and the insertion of the card 101 is restricted by matching the internal space of the card connector 1 to this shape.

FIG. 3 is a perspective view showing a state where the shell of the card connector according to the embodiment of the present invention is removed, and FIG. 4 is a view showing a card insertion state of the card connector according to the embodiment of the present invention. Is a plan view of the card connector, (b) is a side view of the card connector, and (c) is a rear view of the card connector.
As shown in FIGS. 3 and 4, the card connector 1 includes a housing 11 integrally formed of an insulating material such as a synthetic resin and a plate material made of a conductive material such as a metal. And a shell 61 as a cover member attached to the upper side of the housing 11, and accommodates the card 101 inserted from the insertion slot 1a formed at the front end. The shell 61 covers the inserted card 101 and the housing 11.

  The housing 11 includes a bottom plate portion 11a along the board surface to be mounted, a rear wall portion 11b rising from the rear edge of the bottom plate portion 11a, and a side wall portion 11c rising from one side edge of the bottom plate portion 11a. The bottom plate portion 11a includes a terminal holding portion 11d to which the connection terminal 51 is attached. A plurality of terminal holding grooves (not shown) extending in the front-rear direction are formed in parallel on the upper surface of the terminal holding portion 11d, and the plurality of connection terminals 51 are positioned by the terminal holding grooves, It is fixed to the terminal holding part 11d.

  The connection terminal 51 includes a base portion 51a fixed to the terminal holding portion 11d, a contact portion 51b extending rearward from the base portion 51a, and a board connecting portion 51c extending forward from the base portion 51a. The contact part 51b extends obliquely upward from the base part 51a toward the rear, and is elastically contacted and electrically connected to the connection pad 151 of the card 101 to be inserted. The board connecting portion 51c is electrically connected to a wiring pattern formed on the board of the electronic device by soldering or the like. Note that an opening 11e penetrating in the thickness direction is formed at a position below the contact portion 51b in the bottom plate portion 11a. However, the opening 11e can be omitted if necessary.

  An insertion guide portion 11 f that guides insertion of the card 101 and restricts erroneous insertion of the card 101 is provided at a front end portion of the side wall portion 11 c in the housing 11. The insertion guide portion 11f has an inclined surface that guides the front-end right corner of the card 101, and is formed so as to allow insertion of the card 101 only in a posture in which the notch 121 is positioned at the front-end right corner of the card 101. Is set.

  Note that a card detection switch that is configured by a first contact member 52 and a second contact member 53 and that detects insertion of the card 101 is disposed inside the right corner of the rear end of the housing 11. The detection switch can be omitted if necessary.

  The shell 61 includes a substantially rectangular top plate portion 62, a side plate portion 63 extending downward from the left and right side edges of the top plate portion 62, and a rear plate portion 64 extending downward from the rear edge of the top plate portion 62. Have The side plate portion 63 and the rear plate portion 64 are formed with a plurality of engagement holes 63a, 63b, 64a. When the shell 61 is attached to the upper side of the housing 11, the engagement holes 63 a, 63 b, 64 a are engaged with the engagement protrusions 11 g, 11 h, 11 i formed on the housing 11 side, so that the shell 61 is attached to the housing 11. Fixed.

  The shell 61 has a plurality of mounting portions 65 extending outward from the lower end portions of the side plate portion 63 and the rear plate portion 64. These mounting portions 65 are electrically connected to a ground pattern formed on the substrate of the electronic device by soldering or the like. As a result, the shell 61 can be firmly fixed to the substrate of the electronic device and can exhibit a good noise shielding function.

  Conventionally, the card connector for the card 101 provided with the thick portion 111 for the take-out operation at the rear edge, particularly the direct insertion type card connector having no eject function, allows the thick portion 111 to be taken out. For this reason, the rear edge portion of the card 101 is exposed in a wide range, so there is a possibility that noise cannot be sufficiently shielded.

  Therefore, in the card connector 1 according to the embodiment of the present invention, the expansion portion 66 that covers the thick portion 111 of the card 101 from above is provided at the front end portion of the shell 61, and the thick portion is formed in a part of the expansion portion 66. A cut 67 for taking out and operating 111 is formed. In this way, the card connector 1 that accommodates the card 101 having the thick portion 111 for the take-out operation on the rear edge, while allowing the take-out operation of the thick portion 111, the card 61 by the shell 61 is allowed. It is possible to increase the covering area and improve the noise shielding performance.

  The number of cuts 67 is preferably one. The reason is that if the number of the cuts 67 is increased, the covering area of the card 101 by the shell 61 is reduced, and the noise shielding performance is lowered. However, the number of the cuts 67 is not limited to one, and can be increased as necessary.

  The formation position of the notch 67 is preferably the left and right center portion of the expansion portion 66. The reason is that when the thick portion 111 (stepped portion 112) of the card 101 is taken out through the notch 67, the operation force acts on the card 101 in a well-balanced manner, and the card 101 can be taken out smoothly and easily. Because. However, the formation position of the notch 67 is not limited to the left and right center portion of the extended portion 66, and the notch 67 can be formed at a position shifted from the left and right center portion as necessary. For example, when the number of the incisions 67 is two and the two portions of the thick portion 111 (stepped portion 112) are simultaneously taken out and operated through the two incisions 67, the two incisions 67 are placed at positions that are distributed to the left and right. It is preferable to form.

  The shape of the cut 67 is preferably as narrow as possible while ensuring a certain degree of removal operability. The reason is that if the cut 67 is large, the covering area of the card 101 by the shell 61 is reduced, and the noise shielding performance is lowered.

  The extended portion 66 extends downward from the left and right side edges thereof to cover the side edge of the thick portion 111, and extends outward from the tip thereof, and is soldered to the ground pattern of the board. It is preferable to have a mounting portion 69 connected by, for example. The reason is that not only the covering area of the card 101 by the shell 61 is increased and noise shielding performance is improved, but also the extended portion 66 can be firmly fixed to the substrate. However, the side surface extension portion 68 and the mounting portion 69 may be omitted as necessary.

  Next, an operation for inserting and removing the card 101 from the card connector 1 will be described with reference to FIGS.

5A and 5B are diagrams showing a card insertion / removal procedure of the card connector according to the embodiment of the present invention, wherein FIG. 5A is a perspective view of the card connector showing a card insertion / removal in progress, and FIG. 5B is a card insertion state. It is a perspective view of the card connector which shows.
When inserting the card 101 into the card connector 1, the user holds the card 101 with fingers or the like, and inserts the card 101 into the card connector 1 from the front through the insertion slot 1a. At this time, as shown in FIG. 1, the card 101 has a posture in which the thick portion 111 is located on the near side, the bottom surface on which the connection pad 151 is provided faces downward, and the notch 121 is located on the right side of the front end. Inserted. As a result, the card 101 is inserted along the top plate portion 62 and the left and right side plate portions 63 of the shell 61 as shown in FIG.

  Subsequently, the user pushes the card 101 to the insertion limit position with respect to the card connector 1 as shown in FIG. The insertion limit position is defined by, for example, contact between the front end of the card 101 and the rear wall portion 11b of the housing 11, or contact between the rear end of the notch 121 of the card 101 and the insertion guide portion 11f of the housing 11. The

  When the card 101 is pushed into the insertion limit position of the card connector 1, the connection terminal 51 of the card connector 1 contacts the connection pad 151 of the card 101 and is electrically connected in the insertion process. As a result, the card 101 is mounted on the electronic device in which the card connector 1 is mounted, and the electronic device can access the card 101.

  When the card 101 is pushed into the insertion limit position of the card connector 1, the upper surface and side edges of the card 101 are covered with the shell 61. At this time, the thick portion 111 for removal operation formed at the rear edge of the card 101 is also covered by the extended portion 66 of the shell 61. As a result, substantially the entire upper surface of the card 101 is covered with the shell 61, and good noise shielding performance is obtained.

  On the other hand, when taking out the card 101 from the card connector 1, a tool such as a nail, a finger, or a pin is hooked on the stepped portion 112 formed on the front edge of the thick portion 111, and the card 101 is operated in the pulling direction. At this time, in the card connector 1 according to the embodiment of the present invention, the thick portion 111 of the card 101 is covered by the extended portion 66 of the shell 61, but a cut 67 is formed in a part of the extended portion 66. Therefore, the card 101 removal operation through the notch 67 is allowed.

  According to the card connector 1 of the embodiment described above, the housing 11 that accommodates the card 101 and the shell 61 that is formed using a material capable of shielding noise and covers the card 101 accommodated in the housing 11. The shell 61 has an extended portion 66 that covers the thick portion 111 for removal operation provided on the rear edge of the card 101, and the extended portion 66 takes out the thick portion 111 for a part thereof. Since the card connector 1 accommodates the card 101 having the thick portion 111 for the take-out operation at the rear edge, the card by the shell 61 is allowed while the thick portion 111 is taken out. The covering area of 101 can be expanded, and the noise shielding performance can be improved.

  Further, since the notch 67 is formed in the central portion of the extended portion 66, when the thick portion 111 (stepped portion 112) of the card 101 is taken out through the notch 67, the operation force is balanced. The card 101 can be removed smoothly and easily.

  Further, since the extended portion 66 covers up to the side edge of the thick portion 111 and has the mounting portion 69 on the substrate at the tip thereof, the covering area of the card 101 by the shell 61 increases, and only the noise shielding performance is improved. Instead, the extension 66 can be firmly fixed to the substrate.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above-described embodiments, and various modifications may be made within the scope of the gist of the present invention described in the claims. It can be changed.

  For example, the shell 61 of the above-described embodiment is formed by punching and bending a plate made of a conductive material such as metal, but any material can be used as long as it has noise shielding properties. It may be formed. For example, a shell formed of a conductive resin or a shell formed of an insulating resin and having a conductive film formed on the surface layer by plating or the like may be used.

  DESCRIPTION OF SYMBOLS 1 ... Card connector (socket), 1a ... Insertion port, 11 ... Housing, 11a ... Bottom plate part, 11b ... Rear wall part, 11c ... Side wall part, 11d ... Terminal holding part, 11e ... Opening, 11f ... Insertion guide part, 11g 11h, 11i ... engagement projection, 51 ... connection terminal, 51a ... base, 51b ... contact part, 51c ... substrate connection part, 52 ... first contact member, 53 ... second contact member, 61 ... shell, 62 ... top Plate part 63 ... Side plate part 63a, 63b ... engagement hole 64 ... rear plate part 64a ... engagement hole 65 ... mounting part 66 ... expansion part 67 ... incision 68 ... side extension part 69 ... Mounting part, 101 ... card, 111 ... thick part, 112 ... step part, 121 ... notch part, 151 ... connection pad

Claims (4)

A socket for a card connector,
A housing for housing the card;
A shell formed of a material capable of shielding noise and covering the card housed in the housing,
The shell has an extended portion for covering a thick portion for taking out operation provided at a rear edge of the card;
The extension part has a notch for taking out and operating the thick part in a part thereof.   The socket according to claim 1, wherein the cut is formed in a central portion of the extension portion.   The socket according to claim 1 or 2, wherein the extension portion covers a side edge of the thick portion, and has a mounting portion on a substrate at a tip thereof. A card connector,
A card connector comprising the socket according to claim 1.